Electric kettle



FIG. 1 is a Top view;

FIG. 2 is a Right view;

FIG. 3 is a Back view;

FIG. 4 is a Front view;

FIG. 5 is a Left view;

FIG. 6 is a Bottom view; and,

FIG. 7 is a Perspective view.

The portions of the electric kettle shown by coloring form no part of the claimed design. 

CLAIM The ornamental design for electric kettle, as shown and described. 